Ticket #4660: these changes are actually not only for 3D, but they were wrong in 2D as well... and this insight has opened up a whole lot of other tasks with copying lists which should be handled in a different ticket (otherwise, this ticket should continue by really 3D objects)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@38088 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e